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024 _a20215
037 _cTextual
040 _aSDCL
_cSDCL
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041 _2eng
_aeng
082 _aB6, M4
100 _aDubrovin B A
_9503962
245 0 _aModern geometry - Methods and applications.
260 _c1984
942 _hB6, M4
_cTEXL
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999 _c822351
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